Description

In the Linux kernel, the following vulnerability has been resolved:

rtc: tps6594: Fix integer overflow on 32bit systems

The problem is this multiply in tps6594_rtc_set_offset()

tmp = offset * TICKS_PER_HOUR;

The "tmp" variable is an s64 but "offset" is a long in the
(-277774)-277774 range. On 32bit systems a long can hold numbers up to
approximately two billion. The number of TICKS_PER_HOUR is really large,
(32768 * 3600) or roughly a hundred million. When you start multiplying
by a hundred million it doesn't take long to overflow the two billion
mark.

Probably the safest way to fix this is to change the type of
TICKS_PER_HOUR to long long because it's such a large number.

Classification

CVE ID: CVE-2024-57953

Affected Products

Vendor: Linux, Linux

Product: Linux, Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 1.68% (scored less or equal to compared to others)

EPSS Date: 2025-03-27 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2024-57953
https://git.kernel.org/stable/c/5127f3cbfc78a7b301b86328247230bec47e0bb3
https://git.kernel.org/stable/c/53b0c7b15accb18d15d95c7fe68f61630ebfd1ca
https://git.kernel.org/stable/c/09c4a610153286cef54d4f0c85398f4e32fc227e

Timeline